var isIE = navigator.appName.indexOf('icros') > -1;

function GetSynchronousJSONResponse(url, postData) {

    if (isIE) {
        return IEXmlHttp(url, postData);
    }
    else {
        return FFXmlHttp(url, postData);
    }
}

function GetHost() {
    var url = new String(window.location.href);
    var host = "http://www.sela.co.il";


    if (url.indexOf("www", 0) == -1) {
        if (url.indexOf("selagroup", 0) != -1) {
            host = "http://selagroup.sela.co.il";
        }
        else {
            host = "http://sela.co.il";
        }
    }


    return host;
}

function IEXmlHttp(url, postData) {
    var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlhttp.open("POST", url, false); //false means synchronous
    xmlhttp.setRequestHeader("Content-Type", "application/json; charset=utf-8");
    xmlhttp.send(postData);
    var responseText = xmlhttp.responseText;
    return responseText;

}

function FFXmlHttp(url, postData) {

    var xmlHttpFF = new XMLHttpRequest();
    xmlHttpFF.open("POST", url, false);
    xmlHttpFF.setRequestHeader("Content-Type", "application/json; charset=utf-8");
    xmlHttpFF.send(postData);
    var responseText = xmlHttpFF.responseText;

    return responseText;
}